401k Contribution 2024 Limits Over 50. The contribution limit on individual retirement accounts will increase by $500 in 2024, from $6,500 to $7,000. Employees can invest more money into 401 (k) plans in 2024, with contribution limits increasing from 2023’s $22,500 to $23,000 for 2024.

In 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older. This dollar amount is the same as in 2023.